-we learned...

SUMMARY OF LEARNINGS

• Insulative properties of metal affect the burning of the fuel
• Providing insulation between burning materials and fuel
• Air pipe openings that are flush with the bottom of the tray work better than air pipe openings that extrude out from the bottom of the tray.
• Heat concentration through the use of a cone is critical in getting rice hulls hot enough to burn
• Gradually sloping surface provides a larger burnable area which is also another key component